Blastocoelomates Flashcards
1
Q
Name the 9 traits of Blastocoelomates
A
- Unsegmented, triploblastic
- Persistent blastocoel
- Complete gut
- Excretory system
- Dorsal and ventral nerve cords
- Layered cuticle
- Only longitudinal muscles - muslce arms
- No circulatory system
- Dioecious
2
Q
What is the 1 synapomorphy of Blastocoelomates?
A
They have muscle arms
3
Q
Do blastocoelomates have cilia and circular muscles? Why?
A
They don’t because their cuticle is too thick
4
Q
Nervous system
A
Dorsal and ventral nerve cord
5
Q
What coelom do they have?
A
Blastocoelom
6
Q
Excretory system
A
Has excretory duct
7
Q
What type of muscles do they have
A
Longitudinal muscles - when contracted, it bends
